Use data_source to select fetcher

Author: mlouielu

twstock/stock.py

@@ -154,7 +154,9 @@ def purify(self, original_data):
 class Stock(analytics.Analytics):
     def __init__(self, sid: str, initial_fetch: bool = True):
         self.sid = sid
-        self.fetcher = TWSEFetcher() if codes[sid].market == "上市" else TPEXFetcher()
+        self.fetcher = (
+            TWSEFetcher() if codes[sid].data_source == "twse" else TPEXFetcher()
+        )
         self.raw_data = []
         self.data = []